Preparation of Water Baths Three different water baths were prepared for the experiment‚ one at room temperature and the other two at 15°C and at 5°C. The room temperature water bath was prepared by filling a basin with tap water about ¾ full so that when the subject’s face is submerged‚ the water will not spill. A thermometer was used in order to obtain the temperature of the water. The temperature obtained was at 26°C. The water baths having temperatures of 15°C and 5°C were also prepared the
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December 2012 1. Title and Author 1. The Effect of Extreme Temperatures on the Rate of Photosynthesis 2. Jeffrey Xia 2. Abstract A previous lab in which we conducted‚ tested whether or not the light intensity had an effect on the rate of photosynthesis. We concluded that light intensity did possess an effect on the rate of photosynthesis – the closer the experimental plant units were to the light source‚ the more experimental plant units exhibited the effect of gas exchange in photosynthesis.
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Introduction: We are conducting this experiment to identify how temperature affects the solubility of salt. To add on‚ by making this experiment we could see how temperature affects the solubility of a substance‚ the maximum number of solute particles that can dissolve in solvent particles. Also‚ how by changing the temperature we could see how if the solubility of the solute would either increase or decrease. This experiment connects with information we learn in class because of how in class
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and convert it into chemical energy by converting CO2 (carbon dioxide) and H2O (water) to organic materials3. The energy source for photosynthesis comes from sunlight‚ which allows for the fuel that drives photosynthesis. This process can be affected by several variables; one of the most notable variables is the temperature of the plant’s environment. Previous study has led me to conclude that when the temperature of the plants’ environment is low‚ the rate of photosynthesis is also low because
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drowns it means that their lungs (respiratory system) has been blocked from receiving oxygen by a liquid. Majority of the time it is water that people drown in. “Drowning is the third most common cause of accidental death worldwide‚ accounting for 7% of all injury related deaths” (MedicineNet). Water is the most common way that people drown‚ but the two types of water that is common to Earth in masses are freshwater and saltwater. Both can drown you but in completely difference ways. Drowning in saltwater
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Lab Report The effect of temperature on the reaction between Catalase and H2O2 Sarah AlShemesi In this experiment we’ll be exploring the effects of temperature on the reaction between Catalase and H2O2.We’ll be using five different temperatures to test this. The five different temperatures will be 10‚ 30‚ 50‚ 70 and 90 oC. We will use the liver as a source of Catalase. A 1 gram piece of liver will be inserted into a test tube with 2 cm3 of water‚ then 2 cm3 of H2O2 will be added. The Catalase
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first lesson week1‚ term 1‚ 2013Risk Ass Due: last Lesson week 2‚ Term 1‚ 2013Final: First lesson week 6‚ Term 1‚ 2013Procedure: Your task is to investigate the effect of temperature on the activity of enzyme catalase found in beef liver. Use the experimental design and the BioLab Guide provided to assist with your report write up. Safety Considerations: You must have the risk assessment checked before continuing. NOTE:
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The Effect of Temperature on Solubility By Aviraj Singh Rogers 2 Background: The solubility of most solid substances is generally said to increase as the temperature of the solvent increases. However‚ some substances‚ such as ytterbium sulfate‚ do the opposite. This can be explained through the Second Law of Thermodynamics which states that “in all energy exchanges‚ if no energy enters or leaves the system‚ the potential energy of the state will always be less than that of the initial state”
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Lab #5: Dissolved Oxygen Lab Be sure to read and understand the below instructions BEFORE the lab! Experiment 1: Investigating the Effect of Temperature and Salinity on the Concentration of Dissolved Oxygen in Water Introduction: In an aquatic environment‚ oxygen must be in a solution in a free state (O2) before it is available for use by organisms (bio-available). Its concentration and distribution in the aquatic environment are directly dependent on chemical and physical factors and are
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Justin Davis Period 1 9/24/2012 The Bunsen Burner and Boiling Water The Bunsen Burner is a piece of laboratory equipment that produces a single flame which is used for heating‚ sterilizing‚ and combustion. The gas used in Bunsen burners can be natural gas like methane‚ or propane‚ butane‚ or a mixture of both which are all liquefied petroleum gas. The Bunsen burner was named after a man named Robert Bunsen. In 1855 Robert Bunsen invited the Bunsen burner and it is now used all over the world
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